The following (example) URLs are equivalent
https://www.euroga.org/forums/flying/10199-max-glide-vs-min-sink-speed
I should add that during a certain era in the past the post numbering was different – the post # was at the end of the URL e.g.
https://www.euroga.org/forums/firewall-sound-insulation-socata-etc-merged/2180
I don’t think those posts can be short-linked like that.